CN102131667B - Plastic fuel tank comprising noise reduction baffle and process for manufacturing it - Google Patents

Plastic fuel tank comprising noise reduction baffle and process for manufacturing it Download PDF

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Publication number
CN102131667B
CN102131667B CN200980133053.8A CN200980133053A CN102131667B CN 102131667 B CN102131667 B CN 102131667B CN 200980133053 A CN200980133053 A CN 200980133053A CN 102131667 B CN102131667 B CN 102131667B
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CN
China
Prior art keywords
storage tank
fixed link
baffle plate
fuel tank
plastic fuel
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CN200980133053.8A
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Chinese (zh)
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CN102131667A (en
Inventor
朴世亨
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Nergy Automotive Systems Research SA
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Inergy Automotive Systems Research SA
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/03177—Fuel tanks made of non-metallic material, e.g. plastics, or of a combination of non-metallic and metallic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/077—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
    • B60K2015/0344—Arrangements or special measures related to fuel tanks or fuel handling comprising baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
    • B60K2015/03453—Arrangements or special measures related to fuel tanks or fuel handling for fixing or mounting parts of the fuel tank together
    • B60K2015/03467—Arrangements or special measures related to fuel tanks or fuel handling for fixing or mounting parts of the fuel tank together by clip or snap fit fittings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/077—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
    • B60K2015/0775—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation for reducing movement or slash noise of fuel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

Plastic fuel tank (1) comprises a noise reduction baffle (6) and a plurality of interference sections (2) for suppressing tank deformation in the case of application of negative pressure to said tank, the interference sections projecting inward in the tank from an upper surface and a lower surface thereof respectively, and being disposed so as to be substantially opposed with a specified interval between them, one of these sections being part of a fixation device (5, 7) which secures the baffle to the tank wall.

Description

Comprise plastic fuel tank and the manufacture method thereof of a noise reduction baffle plate
The present invention relates to a kind of plastic fuel tank (a kind of manufacture method) being furnished with noise reduction baffle plate.
Onboard fuel system on dissimilar vehicle generally includes a storage tank for storage of fuels, and this storage tank generally includes at least one interior fittings.The one specifically noise reduction baffle plate of this kind of accessory, its objective is the noise (" spilling " noise) accelerating fast with vehicle to absorb, braking, be associated in the inner issuable fluctuation of this storage tank in the situation such as turning.At automotive field, such baffle plate is also referred to as " anti-spilling baffle plate ".
In some country, environmental legislation has been forced to use OBD system (i.e. onboard diagnostic system) to carry out the leak tightness of testing vehicle fuel system.These tests usually mean storage tank are placed in the negative pressure lower regular hour.Therefore, especially when plastics storage tank, these must be designed to bear these negative pressure.
Method described in applying at US 2006/0207991 makes it likely head it off, be by providing multiple interference fragment (interference section), these interference fragments inwardly to be given prominence to a lower surface and to be arranged to that these fragments are specified Spacing with therebetween substantially relative from this fuel tank upper surface respectively in fuel tank.In a specific embodiment, these fragments are molded into the shape of baffle plate, and these baffle plates also acts as the plate washer suppressing spilling noise.But such a solution has some shortcomings:
Volume shared by-these baffle plates described is considerable, and decreases the internal capacity that can be used for fuel;
-which increasing the total weight of storage tank, every block baffle plate is all double-walled type;
-it does not provide a lot of possibility, because these baffle plates form from tank wall is molded in the meaning of shape and material.
The object of the invention is to by providing a kind of method to solve these problems, the method allows to provide a noise reduction baffle plate and anti-vacuum (negative pressure) device to a fuel tank, and this is one simply and flexibly mode, can not limit the internal capacity of this storage tank or increase its weight.
For this purpose, the present invention relates to a kind of plastic fuel tank, this storage tank comprises a noise reduction baffle plate and multiple interference fragment is applying the storage tank distortion under negative pressure condition for suppressing to described storage tank, wherein these interference fragments inwardly to be given prominence to a lower surface and to be arranged to that these fragments are specified Spacing with therebetween substantially relative from its upper surface respectively in this storage tank, and one of these fragments are parts baffle plate being fixed to the anchor fitting on tank wall.
Statement " fuel tank " is interpreted as the storage tank referring to a kind of leakproof, can at use that is various and change and storage under ambient conditions fuel.An example of this storage tank is that power actuated vehicle assembled.
Fuel tank according to the present invention is manufactured to a plastic wall, and this wall is included in an inside face on its sunk part and an outside face on its bossing generally.
Term " plastics " is interpreted as referring to any material comprising at least one synthetic polymer resin.
The plastics of any type may be all applicable.Particularly suitable plastics belong to the classification of thermoplastic plastic.
Term " thermoplastic plastic " is interpreted as referring to any thermoplastic poly-mer, comprises thermoplastic elastomer also and their blend.Term " polymer " " be interpreted as referring to both homopolymer and copolymer (especially the copolymer of binary or ternary).The example of this analog copolymer is (without limitation): the periodic copolymer of random copolymers, straight chain, other periodic copolymers and graft copolymer.
Thermoplastic polymer or the copolymer of any type of fusing point below dissociation temperature are all applicable.The synthetic thermoplastic plastic with the fusion range being distributed in more than at least 10 Celsius temperatures is particularly suitable.The example of this kind of material is included in their mol wt those materials presenting polydispersity.
Specifically, polyolefins, thermoplastic polyesters, polyketone class, polyamide-based and their copolymer is likely used.The blend of poly-mer or copolymer can also be used, also likely use with inorganic, organically and/or a kind of blend of the multiple polymeric material of natural bulking agent similarly, these extending agents are (such as, but be not limited to): carbon, salt and other inorganic derivatives, natural or polymerization fiber.Also likely use the multiple-structure be made up of stack layer and binding layer, these layers comprise at least one in these poly-mers discussed above or copolymer.
A kind of poly-mer of frequent use is polyethylene.Excellent result has been obtained with high density polyethylene (HDPE) (HDPE).
Preferably, method of the present invention for storage tank there is a kind of multiple-structure, this multiple-structure comprises at least one thermoplastic layer and at least one extra play, and this extra play advantageously can be formed by a kind of material, and this material is the obstacle of liquid and/or gas.
Preferably, the character of this barrier layere and thickness are selected, reduces to minimum to make the penetrablility of these liquids and gases contacted with this tank wall.Preferably, this layer is based on a kind of barrier material, that is, a kind of resin of impermeable fuel, such as, as EVOH (a kind of ethylene/vinyl acetate of partial hydrolysis).Alternately, this storage tank can be made to stand a kind of surface treatment (fluorination or sulfurization), its objective is and make the impermeable fuel of this storage tank.
Fuel tank based on multiple outside HDPE layers and an inner evoh layer is preferred.
" baffle plate " refers to a kind of substantially smooth parts, preferably one block of plate, and this plate can have any shape, and it is preferably wherein with multiple hole, to allow fuel to extend there through.
Preferably, this baffle plate is made of plastic, and particularly preferably is most, and it is based on the plastics identical with forming this parison (therefore also having by its molded storage tank).Therefore, it is a baffle plate made with high density polyethylene (HDPE) (HDPE) advantageously, and high density polyethylene (HDPE) is a kind of more cheap and demonstrate good antagonism fuel resistance and have the material of excellent durability (minimum is aging) than POM.
Alternately, this baffle plate can be integrated with its anchor fitting (will be described in detail below), and in the case, it is preferably manufactured as polyacetal, particularly POM (polyformaldehyde) by a kind of elastoplast.
Term " interference fragment " is intended to two embossed sections represented in this storage tank, coordinates, thus prevent storage tank from subsiding when the shape that these two parts have and size make them be applied with negative pressure on this storage tank.Usually, they comprise a flat surfaces separately, and two flat surfaces contact when applying negative pressure.Preferably, two surface contact at least 10cm2, preferably at least 15cm2, and be even more preferably: at least 20cm2.When idle, there is a spacing (space) being several mm between these surfaces, (typically: from 10 to 20mm).
According to the present invention, one of these parts are one and this baffle plate are fixed to a part for the anchor fitting on this tank wall.This anchor fitting may be one with this baffle plate.But, especially (this situation is normally because this storage tank section changes generally) several have a baffle plate of different geometries is comprised at this storage tank, preferably manufacture (and preferably: be molded with plastics) this baffle plate and its anchor fitting individually, thus described anchor fitting may be standard (all identical for all baffle plates).In this case, this anchor fitting is preferably manufactured by a kind of material (as POM) with favorable elasticity, and this baffle plate is preferably manufactured by HDPE.
This anchor fitting can have any shape, as long as it has a surface matched with the corresponding surface of another interference fragment.A kind of square or columniform bar gives good result.In a preferred embodiment, it is a hollow component, and these parts comprise a gap (preferably vertical), and this baffle plate can be inserted into wherein.In this embodiment, this hollow component has a cover plate, and this cover plate act as one of these interference fragments, and it can be molded as a single piece with this baffle plate.Preferably, described cover plate and this hollow component (bar) comprise multiple device matched each other, and thus this cover plate can be fixedly secured on this bar.A hook on this cover plate (gap (aperture) with suitable shape and size on it and this bar matches) gives good result.Generally, this gap is level.
This anchor fitting can be secured on this storage tank by welding, rivet or similar fashion.But, the technology giving good result is this technology described in patent EP 875411 of authorizing the applicant, and this technology to be included in this tank wall molded a kind of embossed section and on this anchor fitting, to provide some to be used for coefficient device with it.These devices preferably include elastic part/extendible portion, and they can have any shape.Preferably, the embossed section in this tank wall has a kind of dovetail shape, and the leg of this anchor fitting has the shape (namely having multiple elastomeric extendible portion) of a kind of star fixture (spider clip).
According to a preferred embodiment of the present invention, another interference fragment (be relative with on anchor fitting) and this tank wall are molded into one, preferred to use the mould of suitable shape.It preferably has the dome shape of a kind of band flat surfaces.Preferably, this surface is larger than the flat surfaces of another interference fragment, to obtain coupling more stable between these two parts.Preferably, this surface ratio another want large at least 10%, even more large at least 15%, and even more preferably large at least 20%.
Preferably, the upper inside surface of this fragment and this storage tank is molded together (i.e. " sealing " this storage tank when time in place in vehicle), and this baffle plate is fixed in the lower inner surface of this storage tank by using this anchor fitting.
In order to solve, this baffle plate to be attached to this storage tank inner and do not make this problem of opening/otch wherein, can while this baffle plate of manufacture by extruding a tubular parison around such baffle plate, then by being molded this parison and this baffle plate being attached on this parison and described baffle plate is introduced in this storage tank.
Term " parison " is interpreted as the preformed member referring to a separate part, this preformed member be generally extrude and there is the shape of tubulose substantially generally, it forms the wall of storage tank after being intended to be molded, that is, using after the parison formation be in fused mass state is an operation of required shape and size by mould to obtain a storage tank.This tubular parison can cut into two halves the most at last, then be flattened, thus form some thin slices, then use a kind of mould comprising two external cavities and an inner core to carry out these thin slices molded.In this embodiment, this inner core can be used for fixing this baffle plate (by its fixed parts), such as, by welding or rivet.
When above-mentioned embodiment, wherein according to this embodiment, this tank wall has been molded an embossed section, and on this anchor fitting, provide some for coefficient device with it, but after being molded described storage tank, this baffle plate and fixed parts thereof are fixed on (because this embossed section must be solid) on this tank wall.The device of above-mentioned these dovetails/star fixture makes it likely easily to fix them only by being slipped among this dovetail by this fixture.In this embodiment, this baffle plate and anchor fitting (preferable through pre-assembled) thereof insert in this storage tank by the aperture of in this tank wall, this aperture is preferably Already on described storage tank, such as: by being provided to this opening inserting fuel delivery module (FDM).
The invention still further relates to a kind of method for the manufacture of plastic fuel tank, this storage tank comprises a noise reduction baffle plate and multiple interference fragment is applying the storage tank distortion under negative pressure condition for suppressing to described storage tank, these interference fragments inwardly to be given prominence to a lower surface and to be arranged to that these fragments are specified Spacing with therebetween substantially relative from its upper surface respectively in this storage tank, said method comprising the steps of:
-parison is given to the shape of this fuel tank, employ a kind of mould with two cavitys: one is bottom for this storage tank and it comprises a dovetail and described part are molded as a unitarily formed device; And another is top for this storage tank and it comprises one this tank wall and this top interference fragment are molded as a unitarily formed device
-allow this molded storage tank cool down and solidify
-fixed link is provided, this fixed link comprises a gap and a leg with star fixture
-this baffle plate is inserted this bar gap and a cover plate in, this cover plate may be single piece with described baffle plate, be fixed on described bar, to provide this bottom interference fragment
-this baffle plate/fixed link/cover plate assembly is inserted in this storage tank by an opening, and the star fixture of this fixed link is inserted in this dovetail.
In the method, this storage tank forms advantageously by so that under type is molded:
Blow molding, namely by making the parison swell of this cutting and using a kind of liquid of pressurization that this parison is pressed against (as applied for, described in EP 1110697, its content being combined by reference in this application for this purpose) on this mould cavity;
Hot forming is carried out to this parison, namely by being pressed against on these mould cavities by this parison, such as, by providing suction (creation vacuum) after described cavity.
Preferably, this storage tank is molded by blow molding, is optionally by extracting vacuum (in order to be pressed against thereon by parison when opening mould) out after these mould cavities.Generally involve this is because hot-forming by mold heated to a temperature close to this plastic working temperature, dark distortion (turning of such as storage tank, parison is by high elongation) can be realized here.This causes period ratio blow molding long, in blow molding, there is not this restriction.
The object of Fig. 1 to 3 is to show some concrete aspect of the present invention, and not thinks to limit its scope by any way.
Fig. 1 shows an otch in a fuel tank, has used a hollow stem to secure a baffle plate in this fuel tank.Fig. 2 shows how to assemble this baffle plate and bar, and Fig. 3 show in more detail and how this and baffle plate is molded as unitarily formed cover plate and is fixed on this bar.
Fig. 1 shows a plastic fuel tank (1), and this storage tank has been molded as with first interference fragment (2) and a dovetail (3) on the other side.In this dovetail, can insert a star fixture (4), this fixture is molded as the leg with a hollow fixed link (5), and a baffle plate (6) is fixed to the bottom of (1) of this storage tank by this fixed link.This baffle plate comprises a cover plate, and this cover plate shows a flat surfaces (7), and this flat surfaces is used as second interference fragment.These parts illustrate (not to this storage tank apply negative pressure) with idle state, between two interference fragments (2,7), therefore there is a little spacing.
Fig. 2 show how this baffle plate (6) is inserted this hollow fixed link (5) a vertical gap (8) among, and Fig. 3 show in more detail the hook (9) that this cover plate supports how to be installed among second horizontal gap (10) among this fixed link (5).
In described embodiment:
-baffle plate (6) and cover plate (7) are made up of HDPE, and fixed link (5) is made up of POM; And
The interference surface (2) on-top is about 27.6cm 2, and the interference surface of bottom (7) is about 22.3cm 2.

Claims (10)

1. plastic fuel tank, comprise a noise reduction baffle plate and multiple interference fragment and described storage tank is being applied with to the distortion of the storage tank under negative pressure condition for suppression, these interference fragments to extend internally with a lower surface and to be arranged to that these fragments are specified Spacing with therebetween substantially relative from its upper surface respectively in this storage tank, it is characterized in that, one of these fragments are parts for the fixed link that manufactures individually, this baffle plate is fixed on the wall of this case by this fixed link, and described fixed link is suitable for being fixed on the described wall of this case.
2. plastic fuel tank according to claim 1, wherein this baffle plate and described fixed link are manufactured separately and assembled parts.
3. plastic fuel tank according to claim 2, wherein this fixed link is made up of polyformaldehyde, and this baffle plate is made up of high density polyethylene (HDPE).
4. the plastic fuel tank according to any one of claim 1-3, wherein this fixed link is a kind of hollow component comprising a vertical gap, and this baffle plate is inserted in this gap.
5. plastic fuel tank according to claim 4, wherein this hollow component has a cover plate, and this cover plate is used as one of these interference fragments, and this cover plate comprises a hook, and a horizontal gap on this hook and this hollow component matches.
6. the plastic fuel tank according to any one of claim 1-3, wherein this tank wall comprises an embossed section, and wherein this fixed link comprises coefficient device with it.
7. plastic fuel tank according to claim 6, wherein this embossed section has a kind of shape of dovetail, and wherein this fixed link comprises the leg that has star clamp-shaped.
8. the plastic fuel tank according to any one of claim 1-3 is wherein that another relative interference fragment and this tank wall are molded into a single piece with on this fixed link.
9. plastic fuel tank according to claim 8, wherein the upper inside surface of this integral type interference fragment and this storage tank is molded together, and this baffle plate is fixed in the lower inner surface of this storage tank.
10. for the manufacture of a kind of method of plastic fuel tank, this storage tank comprises a noise reduction baffle plate and multiple interference fragment is applying the storage tank distortion under negative pressure condition for suppressing to described storage tank, these interference fragments inwardly to be given prominence to a lower surface and to be arranged to that these fragments are specified Spacing with therebetween substantially relative from its upper surface respectively in this storage tank, said method comprising the steps of:
-parison is given to the shape of this fuel tank, employ a kind of mould with two cavitys: one is bottom for this storage tank and it comprises a dovetail and described lower die are made a unitarily formed a kind of device, and another is top for this storage tank and it comprises this top interference fragment and this tank wall are molded as a unitarily formed a kind of device;
-make this molded storage tank cool down and solidify;
-fixed link is provided, this fixed link comprises a gap and a leg with a star fixture;
-this baffle plate is inserted in the gap of this fixed link, and a cover plate is fixed on described fixed link, to provide this bottom interference fragment, described cover plate can be a single piece with described baffle plate;
-by comprise this baffle plate, this fixed link, this cover plate assembly inserted in this storage tank by an opening, and the star fixture of this fixed link to be inserted in this dovetail.
CN200980133053.8A 2008-09-01 2009-08-28 Plastic fuel tank comprising noise reduction baffle and process for manufacturing it Active CN102131667B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP08163396.8 2008-09-01
EP08163396 2008-09-01
PCT/EP2009/061117 WO2010023267A1 (en) 2008-09-01 2009-08-28 Plastic fuel tank comprising a noise reduction baffle and process for manufacturing it

Publications (2)

Publication Number Publication Date
CN102131667A CN102131667A (en) 2011-07-20
CN102131667B true CN102131667B (en) 2015-06-10

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CN200980133053.8A Active CN102131667B (en) 2008-09-01 2009-08-28 Plastic fuel tank comprising noise reduction baffle and process for manufacturing it

Country Status (8)

Country Link
US (1) US9168830B2 (en)
EP (1) EP2321139B1 (en)
JP (2) JP5442013B2 (en)
KR (1) KR101643433B1 (en)
CN (1) CN102131667B (en)
BR (1) BRPI0917107A8 (en)
RU (1) RU2514315C2 (en)
WO (1) WO2010023267A1 (en)

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